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📋 Machine Profiles · 2026Ratio states eight cups in eight minutes from an emulated pour-over. The specifications it publishes, the ones it does not, and no price.
Written and reviewed by the CoffeeLabAdvisor editorial team · Published 9 October 2026
The Ratio Six is a drip brewer built to imitate a hand pour-over. Ratio's own claim for it is “8 delicious cups of coffee in 8 minutes” from an “Emulated pour over process”, in a body measuring 14.25″ H x 6.75″ W x 13.5″ D. It is sold direct by Ratio rather than through Amazon, and the only Amazon listing we found for the machine itself carries no new offer — so this page publishes no price. We quote figures the maker states and say plainly where it states nothing.
The one number Ratio leads with, and what it implies about the brew. Eight minutes for eight cups is slow for a drip machine, and that is the design argument.
Ratio's headline claim for the Six is one sentence: 8 delicious cups of coffee in 8 minutes.
Read as a speed claim it is unremarkable. Read as a deliberate slowness claim it is the whole design.
A minute a cup is not fast for an automatic drip machine. Cheap brewers dump water through the bed as quickly as the element can heat it, which is why they finish sooner and why the result tastes thin. Taking eight minutes over eight cups puts the contact time in the range a hand pour-over occupies, which is what Ratio means by the second claim on the page: Emulated pour over process delivers a perfect pot of coffee every time.
That is the argument for the machine, and it is a coherent one. What Ratio does not do is publish the numbers that would let you check it.
We read Ratio's own product page for the Six and took only what it says there. The complete list of hard figures is short:
8 delicious cups of coffee in 8 minutes.
Emulated pour over process delivers a perfect pot of coffee every time.
Designed for precise heat and water flow.
That is the specification, in full, as published.
The page gives no brew temperature, no wattage, no bloom or pre-infusion timing, no carafe material, and no weight. Designed for precise heat and water flow
is a claim about precision with no number attached to it.
For a machine whose argument rests on brewing like a pour-over, brew temperature is the figure that would settle it. Hand pour-over recipes land around 200–205°F, and a drip machine that cannot hold that range cannot imitate the method however long it takes. Ratio does not publish the figure, so we cannot tell you it meets it, and nor can anyone else working from the maker's page.
We also found no SCA certification claim on the product page. Some drip brewers carry one and it is a meaningful, independently audited mark; we are noting its absence here because it is the kind of thing readers assume is present on a premium brewer.
Ratio sells the Six directly. Across repeated searches of Amazon's catalogue, under several names and in several categories, the only listing we found for the machine itself carried no new offer — used copies only. Accessories for it are listed new: carafes and basket filters both appear.
Our rule is that a price is live or it is absent. We do not publish a figure read once from a maker's page and left to go stale, and we never quote a used listing as a price. Since there is no new listing to read, there is no figure here, and the place to check the current price is Ratio's own site.
This is also the practical answer to where do I buy one: direct. If you are shopping Amazon for a brewer in this class, the cards below are what we document instead.
Ratio makes a larger brewer, the Eight, which is listed new on Amazon in its Series 2 form while the Six is not. The Eight is substantially more expensive and larger; the Six is the one that shows up in searches, which is why this page exists.
If you want the Ratio approach and the Six is unavailable where you shop, the Eight is the same maker's answer at a higher price. If what you want is the behaviour — a slower, temperature-held brew into a carafe — then the brewers on the cards below reach it by other routes, and all of them have listings we can read live.
Not the Ratio Six, which has no current Amazon listing with a new offer. These are the drip brewers we document that occupy the same ground: a slower, temperature-controlled brew in a carafe, bought through a listing we can read live.
The hand-built Dutch reference brewer, in the glass-carafe Select version. Listing states a pump-free brewer that heats water to the correct extraction temperature, a 40 oz (1.25 L) pot in 4 to 6 minutes, a half or full carafe selector switch, automatic shut-off after 100 minutes and a 5-year warranty.
Check price on Amazon →
The most adjustable drip brewer here: a programmable temperature, flow and bloom for the tinkerer. Listing states a 60 oz thermal-carafe brewer with six modes (Gold, Fast, Strong, Iced, Cold Brew, My Brew), PID temperature control, three flow rates, and a Gold Cup preset that sets 197 to 204 F to meet the SCA standard.
Check price on Amazon →
The one-switch thermal brewer with a bloom setting, at the value end of the certified field. Listing states a 1500 W heater holding 194 to 205 F (90 to 96 C), a full 8 cups in 6 minutes, SCA certification, an optional pre-infusion bloom mode, a 1.3 L stainless thermal carafe and dishwasher-safe, BPA-free lid, basket and showerhead.
Check price on Amazon →
The programmable OXO with the same brewing range in a 9-cup thermal format. Listing states temperature-controlled brewing between 197.6 and 204.8 F, a single-dial programmable interface with wake-up timer, a rainmaker shower head and an internal mixing tube.
Check price on Amazon →Ratio's own claim is <q>8 delicious cups of coffee in 8 minutes.</q> That is roughly a minute per cup, which is slow for an automatic drip machine and is the intended behaviour rather than a shortcoming.
Ratio does not publish a brew temperature. The product page says only that it is <q>Designed for precise heat and water flow.</q> We will not supply a number the maker does not state.
No such claim appears on Ratio's product page. We looked for one specifically, because readers tend to assume a premium drip brewer carries it.
Ratio lists 14.25″ H x 6.75″ W x 13.5″ D. It is tall and narrow rather than wide, so the constraint on most counters is the cupboard above it.
Direct from Ratio. Across repeated searches of Amazon's catalogue we found no current listing for the machine with a new offer — only used copies, plus carafes and filters sold new.
Because we could not read one live. Our rule is a live figure or no figure: we do not republish a price captured once and left to drift, and we never quote a used listing as a price.
Sources for this page: The “8 delicious cups of coffee in 8 minutes” claim, the “Emulated pour over process delivers a perfect pot of coffee every time” description, the “Designed for precise heat and water flow” wording and the 14.25″ H x 6.75″ W x 13.5″ D dimensions: Ratio's own Ratio Six product page, ratiocoffee.com, read 2026-10-09 · The absence of a new Amazon offer for the machine, and the presence of new listings for Ratio Six carafes and basket filters: repeated searches of Amazon's catalogue under six names and in four categories, read 2026-10-09 · Specifications on the alternative brewer cards below: each product's own Amazon listing copy, read 2026-10-09 We have not lab-tested brewers; where a figure is a manufacturer's, the page names the manufacturer, and machine capabilities come from our own published review records.